Process tube strip



FIG. 1 is a perspective view of a process tube strip;

FIG. 2 is a side plan view of the process tube strip;

FIG. 3 is a top plan view of the process tube strip;

FIG. 4 is a bottom plan view of the process tube strip;

FIG. 5 is an end plan view of the process tube strip; and,

FIG. 6 is a cross-sectional view of a process tube in the process tube strip taken along line 6 in FIG. 3.

The broken lines immediately adjacent the shaded areas represent the bounds of the claim, and other broken lines are included for the purpose of illustrating portions of the process tube strip that form no part of the claimed design. None of the broken lines form a part of the claimed design. 

CLAIM The ornamental design for a process tube strip, substantially as shown and described. 